dt-bindings: media: i2c : Add ISX021 documentation

Add YAML documentation

Signed-off-by: Bogdan Togorean <bogdan.togorean@analog.com>

Author: btogorean

Documentation/devicetree/bindings/media/i2c/sony,isx021.yaml

@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/sony,isx021.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sony 1/2.57-inch 2.51MP CMOS Digital Image Sensor
+
+maintainers:
+  - Bogdan Togorean <bogdan.togorean@analog.com>
+
+description: |
+  The Sony ISX021 is a 1/2.57-inch CMOS active pixel digital image sensor.
+  It is programmable through an I2C interface. Image data is sent through MIPI CSI-2,
+  through 2 or 4 lanes.
+
+properties:
+  compatible:
+    const: sony,isx021
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    description: Reference to the xclk clock.
+    maxItems: 1
+
+  reset-gpios:
+    description: GPIO descriptor for the reset pin.
+    maxItems: 1
+
+  dvdd-supply:
+    description: Chip digital IO regulator (1.8V).
+
+  port:
+    description: Video output port.
+    $ref: /schemas/graph.yaml#/$defs/port-base
+    additionalProperties: false
+
+    properties:
+      endpoint:
+        $ref: /schemas/media/video-interfaces.yaml#
+        additionalProperties: false
+
+        properties:
+          clock-lanes:
+            const: 0
+
+          data-lanes:
+            minItems: 1
+
+          remote-endpoint: true
+
+        required:
+          - data-lanes
+          - clock-lanes
+    required:
+      - endpoint
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - reset-gpios
+  - dvdd-supply
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        camera-sensor@1a {
+            compatible = "sony,isx021";
+            reg = <0x1a>;
+            dvdd-supply = <&sw2_reg>;
+            reset-gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
+            clocks = <&camera_clk>;
+
+            port {
+                isx021_ep: endpoint {
+                    clock-lanes = <0>;
+                    data-lanes = <1 2 3 4>;
+                    remote-endpoint = <&csiphy0_ep>;
+                };
+            };
+        };
+    };

MAINTAINERS

@@ -19445,6 +19445,12 @@ T:	git git://linuxtv.org/media_tree.git
 F:	Documentation/devicetree/bindings/media/i2c/sony,imx412.yaml
 F:	drivers/media/i2c/imx412.c
 
+SONY ISX021 SENSOR DRIVER
+M:	Bogdan Togorean <bogdan.togorean@analog.com>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/media/i2c/sony,isx021.yaml
+
 SONY MEMORYSTICK SUBSYSTEM
 M:	Maxim Levitsky <maximlevitsky@gmail.com>
 M:	Alex Dubov <oakad@yahoo.com>